Experimental Analysis on Wireless Power Transmission Based on Magnetic Resonant Coupling

Author

Peng, Weidong ; Zhao, Guozhu

Author_Institution

Aviation Eng. Inst., Civil Aviation Flight Univ. of China(CAFUC), Guanghan, China

fYear

2012

fDate

1-3 June 2012

Firstpage

1

Lastpage

4

Abstract

Wireless power transmission by the means of magnetic resonant coupling is experimentally demonstrated in a system with a source coil and a receive coil. A kind of simple and effective circuit structure is introduced. Under this structure, the voltage of receiving coil related with different transfer distance and different driving frequency is analyzed. The experimental results show that the load will receive the maximum voltage and maximum power at resonant frequent 22kHz. The maximum power transferred by two coils is about 1.4 watts when the distance between the coils is 4mm. At the resonance frequency, about 42% of the power supplied by a sinusoidal AC power source is delivered to the load. Additionally, a wireless mobile charger is designed. The mobile charger can work well and its charging current is about 380mA when charging voltage is 4 volts.

Keywords

battery chargers; magnetic resonance; radiofrequency power transmission; radiowave propagation; charging current; charging voltage; circuit structure; driving frequency; frequency 22 kHz; magnetic resonant coupling; power 1.4 W; receiving coil; resonance frequency; sinusoidal AC power source; source coil; transfer distance; wireless mobile charger; wireless power transmission; Capacitors; Coils; Couplings; Magnetic resonance; RLC circuits; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Remote Sensing, Environment and Transportation Engineering (RSETE), 2012 2nd International Conference on

Conference_Location

Nanjing

Print_ISBN

978-1-4673-0872-4

Type

conf

DOI

10.1109/RSETE.2012.6260569

Filename

6260569